/* The following is a simple example that shows conversion of dates
* to and from a std::string.
*
* Expected output:
* 2001-Oct-09
* 2001-10-09
* Tuesday October 9, 2001
* An expected exception is next:
* Exception: Month number is out of range 1..12
*/
#include "boost/date_time/gregorian/gregorian.hpp"
#include <iostream>
#include <string>
int
main()
{
	using namespace boost::gregorian;
	try {
	// The following date is in ISO 8601 extended format (CCYY-MM-DD)
	std::string s("2016-2-25"); //2001-October-09
	date d(from_simple_string(s));
	std::cout << to_simple_string(d) << std::endl;

	//Read ISO Standard(CCYYMMDD) and output ISO Extended
	std::string ud("20160225"); //2001-Oct-09
	date d1(from_undelimited_string(ud));
	std::cout << to_iso_extended_string(d1) << std::endl;

	//Output the parts of the date - Tuesday October 9, 2001
	date::ymd_type ymd = d1.year_month_day();
	greg_weekday wd = d1.day_of_week();
	std::cout << wd.as_long_string() << " "
	<< ymd.month.as_long_string() << " "
	<< ymd.day << ", " << ymd.year
	<< std::endl;
	
	//Let's send in month 25 by accident and create an exception
	std::string bad_date("20160225"); //2001-??-09
	std::cout << "An expected exception is next: " << std::endl;
	date wont_construct(from_undelimited_string(bad_date));
	//use wont_construct so compiler doesn't complain, but you wont get here!
	std::cout << "oh oh, you shouldn't reach this line: "
	<< to_iso_string(wont_construct) << std::endl;
	}
	catch(std::exception& e) {
		std::cout << " Exception: " << e.what() << std::endl;
	}
	return 0;
}